Lubricator.



No. 629,583. Patented July 25, |899. G. U. MERRILL.

LUBRIUATOH.

(Application led Apr. 8, 1898.) (No Model.) 2 Sheets-Sheet l.

ATTORNEYS No. 629,583. Patented July 25, |899. G. U. MERRILL.

LuBmcATon.

(Application filed Apr. S, 1898.)

No Model.) y 2 Sheets-Sheet 2.

ma "cams 51ans cof. Pucmumo., wnsmncrcn. o. c.

NrTnD STATES GRANT U. MERRILL, OF PATERSON, NEV JERSEY.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent O. 629,583, dated .Tilly 25, 1899.

Application tiled April 8, 1898. Serial No. 676,860. (N0 model.)

To all whom, z'ft may concern.-

Be it known that I, GRANT U. MERRILL, a citizen of the United States, residing in Paterson, county of Passaic, and State of New Jersey, have invented certain new and useful Improvements in Lubricators; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

' My invention consists in an improved 1ubricator and in the combination and arrangement of the various parts thereof, substantially as will be hereinafter more fully described and finally embodied in the clauses of the claim.

In the accompanying drawings, in which like letters-of reference indicate corresponding parts in each of the several views, Figure 1 is a front elevation of my improved lubricator, certain portions being broken away and others shown in section to clearly illustrate the nature of my said invention. Fig. 2 is a side elevation of Fig. 1. Fig. 3 is a top plan view of Fig. l, a certain knob or handle being removed. Fig. 4 is an enlarged detail sectional view through the piston-lifting or feed screw and its operating mechanism, and Fig. 5 is a vertical sectional view through said lubricator.

In said drawings, a represents a cylindrical receptacle provided with heads b and c, the former being preferably screwed upon the upper end and the latter secured by a flanged and threaded'union c to the lower end of said receptacle a. The lower head c, which is conical shaped, terminates in and communicates through a screw-threaded hollow nipple d with the bearings to be lubricated, to which bearings said lubricator is adapted to be secured by means of said nipple d and the nut e in the usual and well-known manner. -The upper head b is surmounted by a yoke f, provided in its central upper portion with an internally-screw-threaded hole or openingf, in -which is removably arranged an eXternally-screw-threaded sectional bushing or split nut g, said yoke being screwed upon the head. Said nut or bushing g is'also provided with an internally-threaded hole or opening g', penetrated by the feed-screw h, which latter has an elongated vertical groove or feather-slot h', engaged by a key i', projecting from the central bore of a gearwheel 'L'.

The lower portion of the feed-screw h penetrates a piston or plunger fm, in which it is loosely mounted, and is secured thereto by a nutm, while the top portion of said screw is provided with a suitable knob or handle 'm2, as clearly illustrated in Fig. 1 of the drawings.

The gear-wheel t, which bears with the opposite ends of its hub against the under side of the top portion of the yoke f and against an annular central projection f2 on the upper head l), respectively, is in engagement with a worm n, arranged on a shaft n', which latter has suitable bearings in lugs n", n2, and n3, projecting from and preferably integral with the head b. Between the lug n2 and the lug n3 4 is arranged a ratchet-wheel `o, securely mounted on the shaft 'n' and adapted to be operated by a spring-controlled pawl 0', slidingly arranged in a sleeve 02, carried by and projecting from a downwardly-,extending arm or lever p, which latter by its upper portion is loosely mounted on the shaft n', while its lower free end is weighted, as at p'. A springpawl c2 is secured to the upper side of the bracket n3 and engages the -teeth on the ratchet-wheel to thus prevent the latter from being rotated in a direction opposite to that ofthe arrow R, Fig. l.

The weighted arm p is limited in its swinging motion by set-screws r r', adjustably arranged in lugs r2 r3, projecting from a bracket r4, arranged on and preferably integral with the receptacle Ct.

As above stated, the lubricator is secured to the bearing to be lubricated by means of the screw-threaded nipple d and the lock-nut c. If said bearing is a movable one--that is to say, is, for instance, the connecting-bearing between a pitman and its crank-the lubricator must be set in such a manner that the shaft n', carrying the weighted. arm 1o, is at right angles to the plane of movement of the pitman and crank. Through the reciprocation of said pitman the weighted arm p is oscillated, as will be manifest-that is to say,

IOO

it swings on its fulcrum and, through the spring-controlled pawl o', intermittingly rotates the ratchet-wheel o. The latter, through the shaft n and worm n and gear-wheel t', operates the feed-screw h-that is to say, the latter is rotated vand 4gradually moved downward, together with the plunger m., thereby depressing the grease or otherviscid lubricant contained in the lower portion of the receptacle a and discharging the same uniformly and constantly through the hollow nipple d.

It must be stated that whenever the motion of the movable bearing is arrested the weighted arm p ceases to operate, and accordingly the lubricator stops discharging its lubricant.

To return the screw 71. and piston in. to their uppermost position, the split nut or sectional bushing gis screwed out of the internallythreaded hole f" in the top portion of the yoke zo f, when said screw and piston can be freely lifted up or raised, as will be manifest.

For regulating the amount of lubricant to be discharged the set-screws r r are operated, whereby the swinging motion of the weighted arm p is controlled, and accordingly the movement of the gear-wheel t' and of the feed-screw 7L is adjusted.

It must be remarked that my improved lubricator can also be used for lubricating stationary bearings, in which case the weighted arm p is operated by means connected to movable parts of the engine.

I do not intend to limit myself to the precise construction as shown and described, as various alterations can be made wit-hout changing the scope of my invention; but

What I claim as new, and desire to secure by Letters Patent, is-

l. In a lubricating device, the combination of a receptacle having a suitable outlet, a piston in said receptacle, a removable cover for said receptacle, a screw penetrating said cover and connected to the piston, sustaining means for said screw operatively and disconnectively engaging the same, a gear arranged above and supported by said covei` and also penetrated by and keyed to said screw, and a yoke spanning the cover and the gear, in approximate contact with the upper surface of the latter and carrying said'sustaining means, substantially as described.

2. In a lubricating device, the combination of a receptacle having a suitable outlet, a piston in said receptacle, a removable cover for said receptacle, a screw penetrating said cover and connected to the piston, a hanged split nut for said screw operatively and disconnectively engaging the same, a gear ar ranged above and supported by said cover and also penetrated by and keyed to said screw, and a yoke spanning the cover and the gea-r, in approximate contact with the upper surface of the latter and carrying said split nut, said split nut being screwed into the yoke, substantially as described.

In a lubricating device, the combination of a receptacle having a suitable outlet, a piston in said receptacle, a removable cover for said receptacle, a screw penetrating said cover and connected to the piston, sustaining means for said screw operatively and disconnectively engaging the same, a gear arranged above and supported by said cover and also penetrated by and keyed to said screw, a yoke spanning the cover and 'the gear, in approximate contact with the upper surface of the latter, and carrying said sustaining means, a worm engaging said gear and journaled on the cover, a ratchet-wheel rigidly connected to said worm, and a weighted lever pivotally connected to the cover and providedwith a spring-actuated pawl engaging said ratchetwheel, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 2d day of April, 1893.

GRANT U. MERRILL.

Witnesses:

ALFRED GARTNER, LOUISE SNYDER. 

